Comprobación Rápida de Calibración

 

Los registradores HOBO/StowAway no pueden recalibrarse por el usuario, pero se puede contrastar si los datos registrados están dentro de las especificaciones.

Ideally, testing should be done in a controlled environment. Unfortunately, not everyone has access to this type of environment.

Following is a simple test that you can run to check the temperature accuracy of your logger. Please keep in mind that you will need to place loggers that are not waterproof into a waterproof container prior to testing. Please allow time for the inside temperature of the container to acclimate to the external temperature.

Place crushed ice (preferable made from distilled water), in an insulated container that is large enough to hold the loggers that you are testing. It is important to crush the ice to maintain as consistent and uniformed a temperature as possible. Fill the container with distilled water to just below the level of the ice and stir the mixture around. Submerge the loggers, or thermistor probes that you are testing. Place the entire container in a refrigerator to minimize temperature gradients. Allow enough time for the logger to acclimate. The ice will melt slowly, so the actual temperature should settle around 0°C if the ice bath was prepared correctly.

Listed below are the temperatures that you would expect to see from the loggers, if everything was performed correctly.

Nº Ref.

Precisión

HTI-05+37

@ 0°C ± .67°C

 

STIxx-05+37

@ 0°C ± .67°C

 

HTEA-05+37

@ 0°C ± .67°C

 

STEBxx-05+37

@ 0°C ± .67°C>

 

HTI-37+46

@ 0°C ± .62°C

 

STIxx-37+46

@ 0°C ± .62°C

 

HTEA-37+46

@ 0°C ± .62°C

 

STEBxx-37+46

@ 0°C ± .62°C

 

HTI-39+75

@ 0°C ± .77°C

 

STIxx-39+75

@ 0°C ± .77°C

 

HTEA-39+123

@ 0°C ± .77°C

 

STEBxx-39+123

@ 0°C ± .77°C

 

XTIxx-05+37

Internal thermistor
@ 0°C ±.33°C

External thermistor:
@ 0°C ± .33°C

XTIxx-37+46

Internal thermistor
@ 0°C ± .39°C

External thermistor:
@ 0°C ± .39°C

XTIxx-39+122

Internal thermistor
@ 0°C ± .51°C

External thermistor
@ 0°C± .51°C

TBI32-05+37

@ 0°C ± .23°C

 

WTAxx-05+37

@ 0°C ± .23°C

 

WTAxx-39+75

@ 0°C ± .51°C

 

TBI32-20+50

@ 0°C ± .42°C

 

TBXT08-20+70

@ 0°C ±.33°C

 

H8* Family Internal Sensor

@ 0°C ± .74°C

 

H8* Family with TMC6- HA

@ 0°C ± .57°C

 

H8* Family with TMC6-HB

@ 0°C ± .40°C

 

H8* Family with TMC6-HC

@ 0°C ± .57°C

 

HOBO Pro with Internal Sensor

8 Bit Resolution:
@ 0°C ± .39°C

12 Bit Resolution:
@ 0°C ±.19°C

HOBO Pro with External Sensor

8 Bit Resolution
@ 0°C ± .39°C

12 Bit Resolution:
@ 0°C ±.19°C

*Los usuarios de los HOBO H8 han de descargar de la web el software de actualización BoxCar 3.7.3 upgrade patch que afecta a las medidas de humedad relativa.

Nota: Se ha mejorado la precisión de las medidas de humedad relativa de los HOBO H8.

Recent quality assurance tests found certain H08 data loggers fell outside their ± 5% accuracy specification above 60% RH. The outcome of efforts to improve the accuracy of the H08’s RH measurements in environments with elevated humidity is a new humidity formula that has been implemented in BoxCar 3.7.3. These changes ensure all affected H08 loggers* satisfy the published RH accuracy specification in elevated humidity, and improve logger accuracy across the units’ RH operating range of 5° to 50°C.

La función para precisión mejorada de los HOBO H8 de Humedad Relativa reside dentro del nuevo software BoxCar 3.7.3

Este software está ahora disponible de forma gratuita para los clientes que ya disponen del software original BoxCar Pro, a través del enlace BoxCar 3.7.3 upgrade patch disponible en la web. El nuevo software mejora todas las precisiones de HR para todos los registradores indicados en la siguiente lista. También afecta a los archivos de datos antiguos.

Note: Los registradores afectados por el nuevo software son: H08-003-02, H08-004-02, H08-007-02, H08-007-02-IS.